Software →Simple Scan Pro - PDF Scanner v4.4.2

You can scan documents, photos, receipts, reports, or just about anything. The scan will be saved to the device in image or PDF format. Name and organize your scan to a folder, or share it in the Following ways:
* E-mail, print
* Dropbox, Evernote, Google Drive, WhatsApp, or more
* Wifi connects directly to your computer
Features:
* Mobile phone document, automatically remove the clutter background, generate high-definition JPEG pictures or PDF files.
* A variety of image processing mode, you can manually adjust the image parameters, with a mobile phone can be paper documents, quickly turned into a clear electronic draft.
* Scan color, grayscale, or black and white
* Can be used in office, school, home and any place you want
* Automatically detects page edges
* 5 levels of contrast for clear monochrome text
* Set the PDF page size (Letter, Legal, A4, etc.)
* Thumbnail or list view, sorted by date or title
* Simple scanners are optimized to run very fast.
* Quick search by document title
* Use a password to protect your documents
* General - A single application that works on your phone!
Requirements: Android 4.4+
Home Page -

https://play.google.com/store/apps/details?id=com.simplescan.scanner.pro&hl=en